Basionym Name:Sphaerella nebulosa var. euphorbiae Sacc. & Briard, Revue mycol., Toulouse 7(no. 27): 208 (1885)
Homotypic synonyms:Sphaerella euphorbiae (Sacc. & Briard) Mussat, in Saccardo, Syll. fung. (Abellini) 15: 338 (1901)